import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class Main {

    static Logger log = LoggerFactory.getLogger(Main.class);

    public static void main(String[] args) {
        log.debug("slf4j 打印日志...");
        log.info("slf4j 打印日志...");
        log.error("slf4j 打印日志...");
    }
}